S55 PCV 'SQUEAL' - Easy Fix (so you don't have to replace the entire valve cover)

[joec500]

I just resolved my squeaking problem with the Klifex kit and i used the new spring. Everything went together smoothly. I got lazy and just cut around the plastic cover to gain access to the PCV without have to remove anything other than the engine cover.

Took about 45 mins from start to finish and I used Epoxy to seal mine on. I'll keep everyone updated in regards to how long this repair will last.

But the car is idling much smoother and drivability noticeable improved.

[MetzgerMeister]

That's great news Joe, well done.

My car is sounding like my old Mazda RX-8. There's a whirring sound accompanying the revs and while I have no error codes, I have gone the route of a new valve cover. Going to be installing at the weekend so will be glad to have it done.

[HotRodM4]

I got the noise at 72k miles now. I’m going to have my PCV valve cover replaced.

https://www.fcpeuro.com/products/bmw...er-11127846359

I see it “Comes with (1) 11127587804 Valve cover gasket, (14) 11127576310 ASA Bolts, (10) 11127584156 ASA Bolts, (8) 11127544369 ASA Bolts”

My question is what other parts do I need to get to have my valve cover replaced? Maybe coolant I’m assuming some with have to be drained when moving around the tanks/intercooler to access the area.

I’ve already done spark plugs and coils 14k miles ago. So I don’t see new plugs and coils needed.

[N1rve]

Originally Posted by HotRodM4

I got the noise at 72k miles now. I’m going to have my PCV valve cover replaced.

https://www.fcpeuro.com/products/bmw...er-11127846359

I see it “Comes with (1) 11127587804 Valve cover gasket, (14) 11127576310 ASA Bolts, (10) 11127584156 ASA Bolts, (8) 11127544369 ASA Bolts”

My question is what other parts do I need to get to have my valve cover replaced? Maybe coolant I’m assuming some with have to be drained when moving around the tanks/intercooler to access the area.

I’ve already done spark plugs and coils 14k miles ago. So I don’t see new plugs and coils needed.

When I did my valve cover the dealership also replaced this part. It’s a vent hose.

11-12-7-850-244

There were no ASA bolts replaced according to my WO#.

Only 3 items were replaced. Valve cover, the gasket, and the vent hose.

[MetzgerMeister]

Originally Posted by HotRodM4

I got the noise at 72k miles now. I’m going to have my PCV valve cover replaced.

https://www.fcpeuro.com/products/bmw...er-11127846359

I see it “Comes with (1) 11127587804 Valve cover gasket, (14) 11127576310 ASA Bolts, (10) 11127584156 ASA Bolts, (8) 11127544369 ASA Bolts”

My question is what other parts do I need to get to have my valve cover replaced? Maybe coolant I’m assuming some with have to be drained when moving around the tanks/intercooler to access the area.

I’ve already done spark plugs and coils 14k miles ago. So I don’t see new plugs and coils needed.

So the new valve cover will come with the gasket and all the bolts which are captured within the cover (i.e. they can't be removed).

You will need to swap the engine cover pins and a few small bits of hardware (metal clips) over to the new cover.

You do not need to drain coolant, just disconnect the MAP sensor at the back and lift the intercooler out of the grommets and move over to the side. There's plenty of slack in the piping to allow this.

The vent hose (for PCV under boost) gets very brittle and is incredibly easy to snap when removed from the old valve cover. BMW state to remove it from the turbo inlet pipe rather than the valve cover. When I did my VC gasket I made absolute shite of this pipe and taped it up until I got a new one.

The only other thing you'll need to replace is the gasket on the valve actuator which is very easy.

Vent hose - 11 12 7 850 244

Actuator Gasket - 11 37 7 502 022

Just to note also - if you get some smoke upon start up after everything is back together don't worry, it's just that a small bit has dripped onto the exhaust as the VC was removed and it will clear up after a few minutes.

[MetzgerMeister]

I recently installed a new valve cover and I still have squeaking. Has anyone come across this before and solved it?

It's like as though there's a cover/protector on the underside of the valve cover which no one knows about therefore I dind't remove before installation but as far as I know the cover comes in a bubble wrap bag in a box and is ready to install.

After reading another thread I'm going to replace the year-old vent hose in an attempt to solve it but I'm not filled with confidence if I'm honest.

Video:

https://youtube.com/shorts/YLKuhDEpG...b5dg43WWJALOnn

Any help is appreciated.

[slaughter.mode]

Originally Posted by MetzgerMeister

I recently installed a new valve cover and I still have squeaking. Has anyone come across this before and solved it?

It's like as though there's a cover/protector on the underside of the valve cover which no one knows about therefore I dind't remove before installation but as far as I know the cover comes in a bubble wrap bag in a box and is ready to install.

After reading another thread I'm going to replace the year-old vent hose in an attempt to solve it but I'm not filled with confidence if I'm honest.

Video:

https://youtube.com/shorts/YLKuhDEpG...b5dg43WWJALOnn

Any help is appreciated.

I got a 404 error when trying to access that link.

[ra2289]

Originally Posted by slaughter.mode

I got a 404 error when trying to access that link.

Same

[MetzgerMeister]

Sorry all, don't know why that is. New link:

https://youtube.com/shorts/e_pw22CeeT0?feature=share

[slaughter.mode]

Originally Posted by MetzgerMeister

Sorry all, don't know why that is. New link:

https://youtube.com/shorts/e_pw22CeeT0?feature=share

Pretty sure it's the hose. If you pull the oil cap does the squeaking stop?

[MetzgerMeister]

Originally Posted by slaughter.mode

Pretty sure it's the hose. If you pull the oil cap does the squeaking stop?

Thanks for the input SM. No, I haven't pulled the oil cap but I have a new hose arriving tomorrow.

[slaughter.mode]

Originally Posted by MetzgerMeister

Thanks for the input SM. No, I haven't pulled the oil cap but I have a new hose arriving tomorrow.

Hopefully it's just that otherwise it's an engine seal.

[Tim_M56]

I saw some posts on the M3/M4 that people have been successfully running an N55 valve cover from Amazon with no issues, and it solved their PCV issues. Here's the link to what they were talking about: https://www.amazon.com/MITZONE-Perfo.../dp/B0C557T5LC

I don't know what to think about having an aluminum cover like that, but removing the side channel on the passenger side on the cover, works for them. Very interesting and I would consider this a good option if replacing just the PCV doesn't work. Now I'm curious who the OE for BMW for their valve covers, and that would be ideal for a quality piece.

[MetzgerMeister]

Mahle make the BMW valve covers.

[MetzgerMeister]

Originally Posted by slaughter.mode

Hopefully it's just that otherwise it's an engine seal.

It wasn't the hose although I have replaced it regardless.

The noise was coming from the back of the engine but it has since cured itself and the car is driving like an absolute trooper now.

I have absolutely no idea how it fixed itself but the last thing I did was completely remove the valve cover, reseat the gasket and reinstalled it. The noise was still there but after a few days it just disappeared on its own. It was only after this when I fitted the new hose so fingers crossed it's all ok now.

[Petro_hun]

I have changed the pcv valve about a year ago, and the noise came back.
i ordered the Klifex one now ( I am sure the previous was a Chinese one ) .
The question is: Can I get off the cover the same way as the first time? because I used epoxy to fix it. if not, how do I get it off and prepare the surface?

I also read that some of you change the vent hose. why is that? can I check mine before I change the cap again?

[KnighTT]

With the Klifex kit, is it better to use the OEM spring or the Klifex spring? The spring from the Klifex kit I worry will change the pressure of when the PCV valve operates as it is a taller and thicker spring.

[joec500]

Originally Posted by KnighTT

With the Klifex kit, is it better to use the OEM spring or the Klifex spring? The spring from the Klifex kit I worry will change the pressure of when the PCV valve operates as it is a taller and thicker spring.

I used the new Klifex spring with zero issues. It's been a few months and full E85 Multimap tune without an issue so far.

I feel like most fixes that don't last are due to install issues. There isn't much in these PCV fix to fail or not work, unless it tears again?

Just make sure you reseal tightly with a good epoxy and some type of weight to hold the repaired cover on the valve cover.

[MetzgerMeister]

Originally Posted by Petro_hun

I also read that some of you change the vent hose. why is that? can I check mine before I change the cap again?

The vent hose is replaced for 2 reasons:

1. Upon removing the valve cover it needs to be removed. After years of hot/cold cycles it makes the plastic very brittle and if you look at it sideways it will crumble.

2. Again due to hot/cold cycles the plastic can develop cracks and cause a leak.

You're only doing the PCV valve so you have no reason to remove the valve cover or even the hose itself.